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← TechnologyWhich outcome follows induced current surge occurs within secondary winding of installed current transformer (CT) circuit?
A)Spurious tripping of connected relays✓
B)Permanent core saturation and ratio change
C)Increased metering accuracy at high currents
D)Enhanced thermal protection of primary circuit
💡 Explanation
When a current surge happens internally with secondary coil of circuit transformer(CT)), significant non-sinusoidal currents generated as device attempts equalize the fluxes owing electromagnetic induction within coupled loops, therefore spurious trippings from incorrectly measured amplified harmonics result, rather than saturation, metering accuracy, and preventions; saturation and ratios would need magnetic change.
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